is-file

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is-file

Returns true if the function as-file would return the name of an existing file, and false if as-file would create a temporary file.

 

For example, it returns true if the stream was created from a file using the stream-open function or returned from a mapping. If the stream is not served from a file or it is a file but a temporary one, this function returns false.

 

Signature

is-file(s:stream) -> Boolean

 

Parameters

Name

Type

Description

s

stream

Specifies the input stream.


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